Digital valve control apparatus
    1.
    发明授权
    Digital valve control apparatus 失效
    数字阀控制装置

    公开(公告)号:US4626758A

    公开(公告)日:1986-12-02

    申请号:US820928

    申请日:1986-01-22

    CPC分类号: G05B19/40 G05B2219/45006

    摘要: A digital valve control apparatus for regulating opening of a digital valve by a pulse motor, comprising means for setting desired position and displacement speed of the pulse motor and means for selecting the set position and the set speed in response to instruction signals. While pulses having period corresponding to the set speed are produced by a frequency divider, the present position of the pulse motor is compared with the set position by a comparator. The pulses are fed to a counter which counts up or down to supply the output for driving the pulse motor until the comparator produces the coincident output.

    摘要翻译: 一种用于通过脉冲电机调节数字阀的打开的数字阀控制装置,包括用于设定脉冲电动机的期望位置和位移速度的装置,以及响应于指令信号选择设定位置和设定速度的装置。 当通过分频器产生具有对应于设定速度的周期的脉冲时,通过比较器将脉冲电动机的当前位置与设定位置进行比较。 脉冲被馈送到计数器向上或向下计数以提供用于驱动脉冲电机的输出,直到比较器产生一致的输出。

    Set point change-over circuit for fluid control valves
    2.
    发明授权
    Set point change-over circuit for fluid control valves 失效
    流体控制阀的设定点切换电路

    公开(公告)号:US4682166A

    公开(公告)日:1987-07-21

    申请号:US796410

    申请日:1985-11-08

    CPC分类号: G05D16/2013

    摘要: A circuit for change-over of electric signal set points applied as control inputs to a fluid control valve for controlling the pressure or flow rate of a fluid. A priority circuit including a priority encoder or priority chain is provided in an input section for set point select and change-over instruction signals from an external sequential controller. When two or more of the instruction signals are applied simultaneously, only the highest priority instruction is received to select the desired set point and the other instructions are ignored.

    摘要翻译: 用于转换电信号设定点的电路作为用于控制流体控制阀的控制输入,用于控制流体的压力或流速。 在来自外部顺序控制器的设定点选择和转换指示信号的输入部分中提供包括优先级编码器或优先级链路的优先级电路。 当同时施加两个或更多个指令信号时,仅接收最高优先级指令以选择所需的设定点,而忽略其它指令。

    Communication control system of fluid control valve
    3.
    发明授权
    Communication control system of fluid control valve 失效
    流体控制阀通讯控制系统

    公开(公告)号:US4855729A

    公开(公告)日:1989-08-08

    申请号:US12654

    申请日:1987-02-09

    IPC分类号: H04Q9/00 H04L12/423 H04Q9/14

    摘要: A plurality of terminal units are connected to the central unit by one optical fiber line in a loop form, thereby forming a communication link. The central unit converts the data including the terminal address and control bit into the serial optical signal and outputs this optical signal. The terminal unit receives and interpretes the optical signal from the central unit and ON/OFF controls the solenoid valve. After completion of the control, the terminal unit rewrites the control bit in the reception data to the data bit indicative of the operating state of the valve and transmits the data bit to the next terminal unit. The central unit receives the signal from the final terminal unit and interprets the bit data which was rewritten from the control bit by the terminal unit, thereby displaying the operating state of the valve.

    摘要翻译: 多个终端单元通过一个光纤线路以环形形式连接到中央单元,从而形成通信链路。 中央单元将包括终端地址和控制位的数据转换为串行光信号,并输出该光信号。 终端单元接收并解读来自中央单元的光信号,ON / OFF控制电磁阀。 在完成控制之后,终端单元将接收数据中的控制位重写为指示阀的运行状态的数据位,并将数据位发送到下一个终端单元。 中央单元接收来自最终终端单元的信号,并解释由终端单元从控制位重写的位数据,从而显示阀的运行状态。

    System for supplying power source by electromagnetic induction coupling
    4.
    发明授权
    System for supplying power source by electromagnetic induction coupling 失效
    通过电磁感应耦合提供电源的系统

    公开(公告)号:US4924171A

    公开(公告)日:1990-05-08

    申请号:US254687

    申请日:1988-10-07

    摘要: Between two units which are separately arranged, a power source signal is supplied from one of the two units to the other unit via electromagnetic induction coupling by using induction coils, and data signals are mutually transmitted and received between both of the units. A change in coupling distance between the induction coils provided for the two units is detected from a signal level of a reception signal from the unit which receives the power supply. When the reception signal level decreases, the signal level of the power supply signal is increased.

    摘要翻译: 在分开布置的两个单元之间,通过使用感应线圈的电磁感应耦合,将电源信号从两个单元之一提供给另一单元,并且数据信号在两个单元之间相互传送和接收。 从接收电源的单元的接收信号的信号电平检测提供给两个单元的感应线圈之间的耦合距离的变化。 当接收信号电平降低时,电源信号的信号电平增加。

    Semiconductor device with back gate voltage controllers for analog switches
    5.
    发明授权
    Semiconductor device with back gate voltage controllers for analog switches 有权
    具有用于模拟开关的背栅电压控制器的半导体器件

    公开(公告)号:US06348831B1

    公开(公告)日:2002-02-19

    申请号:US09465774

    申请日:1999-12-17

    申请人: Fujio Baba

    发明人: Fujio Baba

    IPC分类号: H03K17687

    摘要: A semiconductor device comprises an analog switch and digital circuitry, both of which are formed on a single integrated circuit chip and share a node coupled to external circuitry. A first power source, provided in the device, is coupled to an input terminal of the analog switch whose output is operatively coupled to the node, and a second power source is also provided so as to supply electric power to the digital circuitry whose input or output is operatively coupled to the node. A back gate voltage controller, coupled to a back gate of the analog switch, is provided in order to control a voltage applied to the back gate in response to an operation mode control signal for determining whether the analog switch or the digital circuitry is to be enabled.

    摘要翻译: 半导体器件包括模拟开关和数字电路,它们都形成在单个集成电路芯片上并且共享耦合到外部电路的节点。 设置在设备中的第一电源耦合到模拟开关的输入端,该输出端的输出可操作地耦合到该节点,并且还提供第二电源,以向其数字电路提供电力,该数字电路的输入或 输出可操作地耦合到节点。 提供耦合到模拟开关的背栅的背栅电压控制器,以响应于用于确定模拟开关或数字电路是否将被操作的操作模式控制信号来控制施加到背栅的电压 启用